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Shallow structure and Late Cainozoic geological history of western Bass Strait and the west Tasmanian Shelf

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Created 20/01/2025

Updated 20/01/2025

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Shallow seismic reflection profiles in western Bass Strait and on the west Tasmanian continental shelf have been used to interpret the late Cainozoic geological history of this area. Palaeozoic and Precambrian rocks with little or no sedimentary cover form the structural highs separating the Bass, Torquay, and Otway Basins, and the inner shelf off Tasmania. The Neogene and Quaternary sequences are undeformed and relatively complete in the Bass Basin and off southern Tasmania. Elsewhere, a Late Miocene unconformity separates flat-lying Pliocene-Holocene sediments from gently folded Miocene and older rocks. Subaerial erosion, initiated in the Late Miocene and continued during Pleistocene low sea-level periods, controls sea-floor topography over extensive areas of shelf south of King Island.

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Title Shallow structure and Late Cainozoic geological history of western Bass Strait and the west Tasmanian Shelf
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/d9d9a0b6-903c-4323-ab6a-64450e4f50b3
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[143.0, -44.0], [149.0, -44.0], [149.0, -37.0], [143.0, -37.0], [143.0, -44.0]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Shallow structure and Late Cainozoic geological history of western Bass Strait and the west Tasmanian Shelf". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/shallow-structure-and-late-cainozoic-geological-history-of-western-bass-strait-and-the-west-tas